diff --git a/libs/langgraph/langgraph/pregel/__init__.py b/libs/langgraph/langgraph/pregel/__init__.py index 20410b21a..2173cc7d5 100644 --- a/libs/langgraph/langgraph/pregel/__init__.py +++ b/libs/langgraph/langgraph/pregel/__init__.py @@ -534,8 +534,6 @@ class Pregel( saved = self.checkpointer.get_tuple(config) checkpoint_config = saved.config if saved else config - checkpoint_ns = checkpoint_config["configurable"].get("checkpoint_ns", "") - checkpoint_ns_to_state_snapshots: dict[str, StateSnapshot] = {} checkpoint_ns_to_graph: dict[str, Pregel] = _get_checkpoint_ns_to_graph(self) # we only lookup subgraph checkpoints if we actually have subgraphs @@ -544,58 +542,9 @@ class Pregel( else: checkpoint_tuples = self.checkpointer.list(saved.config) - for saved in checkpoint_tuples: - saved_checkpoint_ns = saved.config["configurable"]["checkpoint_ns"] - - graph_checkpoint_ns = saved_checkpoint_ns.split( - SEND_CHECKPOINT_NAMESPACE_SEPARATOR - )[0] - graph = checkpoint_ns_to_graph.get(graph_checkpoint_ns) - if graph is None: - continue - - with ChannelsManager( - graph.channels, saved.checkpoint, saved.config, skip_context=True - ) as ( - channels, - managed, - ): - next_tasks = prepare_next_tasks( - saved.checkpoint, - graph.nodes, - channels, - managed, - saved.config, - saved.metadata.get("step", -1) + 1, - for_execution=False, - ) - state_snapshot = StateSnapshot( - read_channels(channels, graph.stream_channels_asis), - tuple(t.name for t in next_tasks), - saved.config, - saved.metadata, - saved.checkpoint["ts"], - saved.parent_config, - tasks_w_writes(next_tasks, saved.pending_writes), - ) - - checkpoint_ns_to_state_snapshots[saved_checkpoint_ns] = state_snapshot - - if not checkpoint_ns_to_state_snapshots: - return StateSnapshot( - values={}, - next=(), - config=config, - metadata=None, - created_at=None, - parent_config=None, - tasks=(), - ) - - state_snapshot = assemble_state_snapshot_hierarchy( - checkpoint_ns, checkpoint_ns_to_state_snapshots + return _prepare_state_snapshot( + checkpoint_config, checkpoint_ns_to_graph, checkpoint_tuples ) - return state_snapshot async def aget_state(self, config: RunnableConfig) -> StateSnapshot: """Get the current state of the graph."""